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Having sex with your sister in law is completely deranged, right?

Nobody moral would do this, right? These are just jokes?
supple faggot firefighter
  10/11/24
I dunno. What if she has a nice ass?
Arousing big-titted turdskin heaven
  10/11/24
more detail plz
hairraiser home jap
  10/11/24
...
Arousing big-titted turdskin heaven
  10/11/24
It probably depends on how much you hate your bio parent and...
Aggressive sapphire hospital
  10/11/24
do u know what a sister in law is?
Painfully Honest Pea-brained Gaming Laptop
  10/11/24
he's watched too much porn
Charismatic menage
  10/11/24
Objection, nonresponsive
Aggressive sapphire hospital
  10/11/24
...
sable clown ladyboy
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Aggressive sapphire hospital
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
Galvanic Church
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Plum Dingle Berry Indirect Expression
  10/11/24
mostly cr
supple faggot firefighter
  10/11/24
...
Sadistic parlour
  10/12/24
this is exactly why I never sleep with my wife
floppy ebony private investor
  12/23/25
depends on if your wife is dead or not
Charismatic menage
  10/11/24
i believe this is colloquially known as "the biden rule...
Plum Dingle Berry Indirect Expression
  10/11/24
...
frisky black idea he suggested
  11/30/25
only if you don't take pictures to share with us
ruby big base mediation
  10/11/24
(martin brodeur)
cobalt pisswyrm pervert
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
ungodly stead
  10/12/24
This. Plus they are always hugging and kissing you.
White house-broken dysfunction
  10/12/24
...
ruby big base mediation
  12/23/25
Wtf
supple faggot firefighter
  10/12/24
This is my life. Constant blue balls.
ungodly stead
  10/12/24
...
hairraiser home jap
  11/30/25
Is she a spicy Latina?
mauve trailer park
  10/12/24
...
frisky black idea he suggested
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
White house-broken dysfunction
  10/12/24
180
Talented Narrow-minded Locus Incel
  10/12/24
...
Offensive Business Firm National Security Agency
  10/12/24
twist: the sil was Catherine of aragorn
disrespectful university bbw
  10/12/24
If first brother was childless then this is classic Levirate...
Slate Meetinghouse Black Woman
  10/12/24
...
Offensive Business Firm National Security Agency
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Slate Meetinghouse Black Woman
  10/12/24
...
Offensive Business Firm National Security Agency
  10/12/24
You're doing it for the purpose of having children, through ...
Slate Meetinghouse Black Woman
  10/13/24
are we talking about your wife's sister or your brother's wi...
cracking rebellious public bath useless brakes
  10/12/24
How many times do we have to go over this.
Orange slippery cumskin
  10/12/24
...
blue principal's office old irish cottage
  10/12/24
...
frisky black idea he suggested
  11/30/25
...
blue principal's office old irish cottage
  12/23/25
...
sable clown ladyboy
  12/23/25
...
tan party of the first part
  12/23/25
yes
Stimulating Lavender Weed Whacker
  10/12/24
voice of reason as always cbtp
supple faggot firefighter
  10/12/24
not as deranged as brother-in-law
emerald goal in life
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
razzle reading party
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: supple faggot firefighter

Nobody moral would do this, right? These are just jokes?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48187983)



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Arousing big-titted turdskin heaven

I dunno. What if she has a nice ass?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48187985)



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: hairraiser home jap

more detail plz

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48187988)



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: Arousing big-titted turdskin heaven



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48187993)



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Aggressive sapphire hospital

It probably depends on how much you hate your bio parent and stepparent. If eg I was a Chadly 16 year old and a drunk, verbally abusive stepdad moved into my house with me and my mom, and he brought along his hot 15 year old daughter, I could see how fucking the shit out of his 15 year old daughter might be beneficial for me and my mom.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: Painfully Honest Pea-brained Gaming Laptop

do u know what a sister in law is?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188004)



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Charismatic menage

he's watched too much porn

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188017)



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: Aggressive sapphire hospital

Objection, nonresponsive

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188617)



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: sable clown ladyboy



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533041)



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Aggressive sapphire hospital

I do but I prefer fantasizing about my non-existent step sister. I originally meant to go back to the beginning of this and add some intro that set up the pivot, but I forgot to do that.

Given the XO stipulation that we’re limiting the discussion to wife’s sister and brother’s wife is obviously off limits, it would require a wife that is truly evil and awful to justify it, and no kids can be involved for anyone. That said, it would be literally the greatest spite sex ever, if justified, and also a real life-threatening peak experience since by definition any wife awful enough to deserve to get cucked by her own sister would be fully capable of murdering both of you. So in that 1/100k scenario where you made the mistake of marrying the literal devil it’s not only justified it’s incredibly hot.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: Galvanic Church

Not sure if this analysis is on point. The less it's justified the hotter it is imo

Scandal is the very foundation of the SIL Fetish

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Plum Dingle Berry Indirect Expression

sleeping with anyone within your orbit of friends & family is insane and doomed

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188009)



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: supple faggot firefighter

mostly cr

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188040)



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: Sadistic parlour



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190661)



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: floppy ebony private investor

this is exactly why I never sleep with my wife

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533050)



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Charismatic menage

depends on if your wife is dead or not

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188014)



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Plum Dingle Berry Indirect Expression

i believe this is colloquially known as "the biden rule"

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188018)



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: frisky black idea he suggested



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49472648)



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: ruby big base mediation

only if you don't take pictures to share with us

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188026)



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: cobalt pisswyrm pervert

(martin brodeur)

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188717)



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: ungodly stead

Anyone who doesn't at least understand the temptation doesn't have a hotter young SiL.

It's a combination of many factors. She's a hotter, younger version of your wife (who you were already naturally attracted to--they share the same genes).

She's often proximate to you including during revealing, semi-intimate moments--e.g., lounging around in her robe, changing adjacent to go to the beach, at the pool in her bikini, at a cabin getting dressed in the morning, casually walking into your room while you're getting dressed, asking you to pass her a towel, etc.

The SiL has a natural temptation and desire--this can be conscious or subconscious--to fuck with her sister like all good classic fucked up female relationships and one obvious way to do it is to tempt the sister's husband.

It's a toxic stew that results in you constantly having a throbbing cock around your SiL's pendulous breasts and warm luscious hairy honeypit that she semi-regularly flashes you with even as your rational mind tells you this would be the worst decision you ever made because inevitably it will come back to haunt you and blow up your life.

Thank

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: White house-broken dysfunction

This. Plus they are always hugging and kissing you.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189951)



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: ruby big base mediation



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533178)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: supple faggot firefighter

Wtf

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190745)



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: ungodly stead

This is my life. Constant blue balls.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190953)



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: hairraiser home jap



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49472629)



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: mauve trailer park

Is she a spicy Latina?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189956)



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: frisky black idea he suggested



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49472649)



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: White house-broken dysfunction

Youngest SiL is trim, has a 180 ass and is always kissing me on the lips. Hard not to think about it.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Talented Narrow-minded Locus Incel

180

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190744)



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Offensive Business Firm National Security Agency



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189979)



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: disrespectful university bbw

twist: the sil was Catherine of aragorn

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190647)



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: Slate Meetinghouse Black Woman

If first brother was childless then this is classic Levirate marriage out of Deuteronomy

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: Offensive Business Firm National Security Agency



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190672)



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Slate Meetinghouse Black Woman

He's literally the closest replacement for the guy. I can't think of anything more natural.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: Offensive Business Firm National Security Agency



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190723)



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Slate Meetinghouse Black Woman

You're doing it for the purpose of having children, through whom your brother lives on. Nothing could be a bigger solid for the guy.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: cracking rebellious public bath useless brakes

are we talking about your wife's sister or your brother's wife?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: Orange slippery cumskin

How many times do we have to go over this.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189992)



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: blue principal's office old irish cottage



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190799)



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: frisky black idea he suggested



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49472653)



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: blue principal's office old irish cottage



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533037)



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: sable clown ladyboy



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533043)



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: tan party of the first part



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533170)



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: Stimulating Lavender Weed Whacker

yes

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189990)



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: supple faggot firefighter

voice of reason as always cbtp

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190802)



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: emerald goal in life

not as deranged as brother-in-law

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190004)



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: razzle reading party

Wife’s sister or your bros wife = deranged

wife’s bros wife = still deranged but less so

Sister of BIL or SIL not directly related to your wife = fair game except for the whole infidelity thing

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533184)